2-Power - DDR3 - module

4 GB - SO-DIMM 204-pin - 1066 MHz / PC3-8500 - CL7 - unbuffered - non-ECC - for Acer Aspire 3820, 4251, 4551, 4741, 57XX, 77XX; TravelMate 85XX; TravelMate Timeline 8471